Casing for vacuum cleaners



Sept. 10, 1929. O ADAMS 1,727,922

CASING FOR VACUUM CLEANERS Filed July 19, 1927 5 Sheets-Sheet l gmmto'a7770172021 QAr/amw P 1929- T. o. ADAMS 1,727,922

CASING FOR VACUUM CLEANERS Filed July 19, 1927 5 Sheets-Sheet 2 Sept.10, 1929. ADAMS CASING FOR VACUUM CLEANERS Filed July 19, 1927 5Sheets-Sheet 5 Spt. 10, 1929. Q ADAMS 1,727,922

CASING FOR VACUUM CLEANERS Filed July 19, 1927 5 Sheets-Sheet 4 gwuemtozSept 10, 1929- T, QADAMg 3 727322 CASING FOR VACUUM CLEANERS Filed July19, 1927 5 Sheets-Sheet 5 the two halves of the casing separated;

Patented Sept. 10, 1929.

UNITED STATES PATENT oFFI THOMAS O. ADAMS, OF NEW PHILADELPHIA, OHIO,ASSIGNOR, BY MESNE ASSIGN- MENTS, TO WISE-MGOLUNG CORPORATIO PORATION OFOHIO.

Application filed Jul 19.

The invention relates to casings for vacuum cleaners; and the object ofthe improvement is to. provide a casing formed of two sections adaptedto be connected together by screws or the like and forming a completembtor housing, fan chamber andnozzle, separable along the median line ofthe motor and fan. 1

By forming the casing in this manner the operation of construction isgreatly simplified and machine work is reduced to a minimum, while themotor, fan and bearings may be removed as a unit and the slight machineWork required for receiving the motor in the casing may be completed ina single operation, thus accurately" aligning the bearings and field ofthe motor.

' An embodiment of the invention is illustrated in the accompanyingdrawings, in which Figure 1 is a side elevationof a sweeper providedwith the improved casing, showing 7 Fig. 2, a front elevation of theimproved casing;

' Fig. 3, a plan view of the lower half .of the casing; 1 Fig. 4, anelevation of the motor assembled;

Fig. 5, a plan view of the lower half of the casing, showing the motorand fan assembledtherein;. p 7

Fig. 6, a bottom plan view of the upper half of the casing;'

Fi 7, a transverse section through the nozz e;

Fig. 8, an enlarged fragmentary transverse section through the fanchamber;

Fig. 9, a detail sectional view of the rear caster mounting; and Fig.10, a detached elevation of the cover plate for the attachment opening.

Similar numerals refer to similar parts throughout the drawings.

The casing is formed of the upper and lower sections indicated generallyat 1 and 2 respectively which may be in the form of die castings. Eachsection forms substan-' tially one-half of the entire vacuum cleanercasing and the sections are adapted, when 1v, or NEW PHILADELPHIA, OHIO,A core CASING FOR VACUUM CLEANERS.

1927. Serial No. 206,861.

at 3, being substantially semi-cylindrical and terminating in thesemi-spherical outer end 4, having the tubular supports 5 for the motorbrushes 6.

A rearwardly disposed lug 7 is formed upon the lower half of the motorhousing for the attachment of the mat caster 8. Halfround bearingsockets 9 and 10 are formed in the ends of the lower half of the motorhousing 3, for the reception of the motor bearings 11 and 12respectively, half-round ribs 13 are-provided therein for the receptionof the field 14 of the motor.

The lower half of the fan chamber, as indicated at 15, is formedintegral with and at the forward end of the lower half of the mo-fio torhousing 3, being separated therefrom by the partition wall 15. This halfof the fan -cha1nberis of the propersize and shape to ber for thepurpose of attaching the axle 18 of the'front casters 19.

Thelower portion 20 of the nozzle extends 30 downward and forward fromthe front side of the lower half of the fan chamber, being flaredoutward from the inlet opening 21 thereof.

An upright flange 22 is formed integral with each side edge of the lowerportion- 20 of the nozzle.

After the lower section 2 is" formed, the only machine work, necessarythereon is a single milloperation upon. the ribs 13 and bearing sockets9 and 10, which thus accurately aligns these ribs and sockets to receiVe 'the field 14 and bearings 11 and 12 of the .motor. w

Apertures 27, 28 and 29 are formed in the 9 I lower halves of the motorhousing, fan cham her and nozzle respectively to receive screws. toconnect the upper section 1 thereto. Apertures 30 are also providedadjacent to the bearing sockets 9 and 10 to receivescrews and spaced 6531 for attaching the clips 32 by means of which the bearings 11 and 12are held in place within the bearing sockets.

Apertures 33 are formed in the inwardly disposed lugs 34 to receive thescrews 35', the heads of which are received in the recesses 36 of themotor field to retain the same in position; and apertures are providedin the brush supports 5 to receive the screws 37 for retaining thebrushes therein.

As the entire motor, tan and bearings are assembled in a single unit, itwill be seen that when the lower section is formed and machined as abovedescribed, this unit may be easily and accurately mounted in positiontherein and attached by means of the screws 31 and 35, and clips 32.

The lower half of the casing thus has the motor, fan, bearings, andcasters all assembled thereon independently of the upper section 1 whichforms a cover for these parts.

This upper section comprises the upper half 38 of the motor housing, theupper half 39 of the fan chamber, and the upper portion 40 of thenozzle.

The upper portion of the motor housing has the half-round sockets 41 and42 to accommodate the motor bearings ,11 and 12 ,respectively, and thehalf-round sockets 43 to accommodate the brush supports 5, and isprovided upon its top with lugs 44 for the attachment of the usualoperating handle 45, by means of which the cleaner may lpe moved to andfro upon the objective surace.

The upper and lower halves of the fan chamber are provided around theiredges with the cooperating interfitting ribs 46 and 47 respectively,adapted to overlap and form a tight joint when the sections areconnected together. Grease or the like may be placed between these ribsand when the two halves of the fan chamber are drawn together by thescrews an air-tight chamber is formed.

An outlet compartment 48 is formed integral with the upper half of thefan chamber and adapted to communicate with the-elongated side 49 of thelower half 15 of the fan chamber.

The outlet neck 50 communicates with the outlet compartment 48, and maybe provided with the studs 51, for the attachment of the usual dustcollector bag 52, the upper end of which bag may be supported from thehandle 45 of the. sweeper in the usual manner.

The upper portion 40 of'the nozzle depends downward and forward from thefront of the upper half 39 of the tan chamber and communicates therewiththrough the half-roundopening 53. The inclined sideedges of this upperportion of the nozzle are provided with the depending, slightly inclinedflanges 54 adapted to overlap the upright flanges 22 uponthe lowerportion of the nozzle.

The depending flanges 55 are also provided at the ends of the upperportion 40 of the nozzle, forming a closure for the ends of the nozzlemouth, and the depending flange 56 "is formed at the forward edgethereof,

forming the forward lip of the nozzle mouth.

An opening 57 may be formed in the upper portion 40 of the nozzle,adjacent to the inlet opening to the fan chamber, for the insertion ofthe usual converter hose by means of which the sweeper attachments maybe used. This opening may be normally closed by a hinged plate 58.

Tapped apertures 59, 60 and 61 are provided in the upper portions of themotor housing, fan chamber and nozzle respectively for the reception ofthe screws which are inserted through the apertures 27, 28 and 29 of thelower section for the purpose of connecting the two sections together toform a complete vacuum cleaner casing.

The brush 63 is carried by a pair of arms 64, pivotally mounted, as at65, upon the inner sides of the end walls 55 of the upper portion 40 ofthe nozzle. The free ends of these arms may be curved, as shown at 66,for frictional engagement with the rubber bumper 67 upon the forwardflange 56. When it is not desired to use the brush, the same may beswung backward, upon its piv ots, in rear of the nozzle mouth.

The rear caster 69 is journalled in the yoke 7 O, which is swivelledupon the lower end of the adjusting screw 71. This screw is threadedthrough a fixed nut 72, which may have a ilrivp fit in the aperture 73formed in the The lower end of this nut is internally coned as at 74, toreceive the split, conical bushing 75, which is retained as by thespring clip 76, having the inturned flange ends 77, received in thegrooves 78 of the lug. A knob 79 may be provided upon the top of theadjusting screw for operating the same.

WVith this construction it is not only possible to produce a casingwhich is comparatively cheap to manufacture and easy to assemble, but itwill be seen that with very little machine work the motor, fan andbearing unit maybe accommodated and accurately aligned; the upper halfof the casing may be easily and readily removed, carrying with it thedust collector bag, handle, and brush, and giving access to the motorand tan; and the motor, fan and bearings as a unit may be easily andreadily removed and replaced.

I claim:

1. A vacuum cleaner casing comprising a motor housing, fan chamber andnozzle, said casing beingformed of two separable sec tions, each formingcomplementary portions of the motor housing, fan chamber and nozzle.

"2. A vacuum cleaner casing comprising a motor housing, fan chamber andnozzle, said casing being formed of two separable sections, each formingcomplementary portions of the motor housing, fan chamber and nozzle,there being interfitting ribs around the meeting edges of the fanchamber portions of the sections.

3. In a vacuum cleaner, a casing comprising' a motor housing, fanchamber and nozzle, said casing being formed of two separable upper andlower sections, each forming complementary portions of the motorhousing, fan chamber and nozzle, and a motor, fan and bearing unitcarried by the lower section.

4. A vacuum cleaner casing comprising a motor housing, :tan chamber andnozzle, said casing being formed of two separable upper and lowersections, each forming complementary portions of the motor housing, fanchamber and nozzle, and aligned half-annular ribs and bearing sockets inthe lower section to receive the field and bearings of a motor.

5. A vacuum cleaner casing comprising a motor housing, fan chamber andnozzle, said casing being formed of two separable upper and lowersections, each forming complementary portions of the motor housing, fanchamber and nozzle, the lower section having supports for motor brushes,and aligned halfannular ribs and bearing sockets to receive the fieldand bearings of a motor.

6. A vacuum cleaner casing comprising a motor housing, fan chamber andnozzle, said casing being formed of two separable upper and lowersections, each forming complementary portions of the motor housing, fanchamber and nozzle, and depending flanges upon the nozzle portion of theupper section overlapping the edges of the nozzle portion of the lowersection.

In testimony-that I claim the above, l have hereunto subscribed my name.

THOMAS O. ADAMS.

